An Applied Method for Investigating Potential Problems of ducting and Status of Change Management in a Local Exhaust Ventilation System
Authors
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Mahdi Jamshidi Rastani
Department of Occupational Health Engineering, School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran, Environmental and Occupational Health Research Center, Shahroud University of Medical Sciences, Shahroud, Iran.
https://orcid.org/0000-0002-2208-8811
- Somayeh Hosseini Health Network of Azima, Shahroud University of Medical Sciences, Shahroud, Iran.
- Mohsen Nikjoo Unite of Environmental Health, Shroud Municipality, Iran.
- Kian Dana Division of Environmental Medicine, Grossman School of Medicine, New York University, New York, NY, USA.
- Mahmoud Heidari Department of Occupational Health, School of Health, Guilan University of Medical Sciences, Rasht, Iran; Research Center of Health and Environment, School of Health, Guilan University of Medical Sciences, Rasht, Iran.
DOI:
https://doi.org/10.22100/ijhs.v12i2.1373Keywords:
Change management, local exhaust ventilation, ductwork, Potential problemsAbstract
This study aims to provide an applied method for studying the potential problems of ducting systems and the status of change management implementation in a LEVS. This study designed in two sections of providing a self-made checklist for checking compliance with the standards and recommended criteria. The results show that approximately 25% of the branches have changed from the installation/drawings, and the branch connection angle has deteriorated. In any of the 75 elbows used, the recommended R/D ratio is not met. In 47% (7 cases), ducting hoods routes have been selected inappropriately. In addition, the process of managing change in documents and drawings has not taken place from the beginning. According to the results, at the time of delivery and operation of the system, sufficient knowledge and experienced people to study the system, adapt the design data to standards and implement change management is not available, or at least it can be said that this matter is not important and not done. This method can be used as a tool for managing change in order to update documents (systematically), along with highlighting noncompliant standards.
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